Lubricating apparatus



' Aug. 25, 1925. 1 1,551,261

C. E. MILNER LUBRICATING APPARATUS Filed July 3. 1923 ft/Verbier M/Zner :'50 manner with a piston b anda screw c, the

. Paten/ted Aug. 25, 1925.

UNITED STATES PATENTvv oFFlcE.

I y CHARLES ERIC MILNER", F BIRMINGHAM, ENGLAND, ASSIGNOCR T0 BENTON & STONE LIMITED, 0F BmMINGHAM, ENGLAND.v

v EuBnIcA'r-Ine APPARATUS.

Aspncation nle'a my s, 192s. serial No.- 649,315.2.

, To 'wlwm may concern: Y

' Street, in the city 'f Birmingham, England,

have invented certain new and useful' Improvements Relating to Lubricating yApparatus, of which the following isa specifica-- This invention relates to lubricating appara-tusof the kind known as grease guns,

lin which lubricant is contained in a cylinv tachable connection between the cylinder and a nipple on the part to be lubricated, the pipe being attachedto the nipple by a screw or other mechanical coupling device. When it is desired topsupply a quantity V.of lubricant to. a number of different parts in su'ccession, the necessary manlpulatlon of the usual couplmg device may vsometimes be tediousand slow. For many purposes it isdesirable to be able to effect the lubricating operation more 4expeditiously than has been possible hitherto.

The present invention comprises the como bination with a cylinder containing a screwl operated or other piston,0f a rigid delivery lbranch fixed at a suitable angle to the cylin der and provided with a valve, thedelivery 'cous lubricants the apparatus shown in Fig- `end of the said branch being adapted to be forced against the nipple on the part to be lubricated vby .hand pressure suliciently to open the valve and' permit the 'required extrusion -of lubricating material.

' In the accompanying sheet of explanatory drawingsz- Figure'l isa partsec'tional side elevation showing one form of lubricating apparatus i' constructed -in accordance/With this inven- ",tio`n.

, l Figure 2 is a similar view showing an alternative form.

Fi re 3 shows an additional nozzle which can used with the apparatus illustrated in Figure 2. l. i v

Referring to' Figure 13a' cylinder a for containing the llubricant-is fitted in the usual latter passing through'one `end ofthe cylin- A der and terminating'in an operatingl handle d. lAt the other end of thecylinder is secured a rigid delivery branch' e which is'dis-A posed at an angle to the cylinder, e. .about One end of the branch is fitte with af nozzle f, containing a spring controlled valve g which unde'r axiallydirected pressure can be pressed 0H its seating to permit the required out iiow of lubricant vfrom the cylinder. For most purposes it is convenient to construct the n`ozzle to slip over aplain 1 cylindrical nipple l1. projecting from` the part to which lubricant is to `be applied, the outer end of the nipple containing a non-return ball valve z' which is pressed oli' its seating when the nozzle isapplied to it. At the other end of the branch is provided a handle j by which the user can apply a com; paratively strong pressure in line with the axis of the nozzle and branch.

In use the lubricant is put under pressure by the screw operated piston in the cylinder, and after the nozzle has been slipped over the nipple pressure is applied to the handle. The resultant interaction of the nipple and the Valve in the nozzle opens the valve and permits a quantity of lubricant to' be delivered. On releasing the pressure on the handle the valve re-closes. The apparatus is then transferred to the next point,'and the operation repeated. In this way the lubricating of a piece of machinery (such asa motor car) at a number of different points4 lcan be effected very ex editiously.

When dealing with uid or slightly visure 1 can be simplified. In the form shown in Figure 2, for example, the handle is dispensed with, and instead of a screw actuated piston for ejecting the lubricant I employ a piston actuated by an ordinary sliding rod or plunger. The cylinder or container a is fitted with a sliding piston b, and a piston rod c passing through a cap or coverat one end of the cylinder, the piston rod being provided' with a knob or handle d'. The other end of the cylinder is closed by a screwed or other detachable cap which` is formed integrally with a delivery branch e containing a valve g as in my previous apparatus. The axis o f this branch is preferably arranged at right angles to the axiso-f the cylinder, and the delivery end is adapted to be slipped over the nipp e h in the part which is to receive the lubricant. t A

In use the forward'e'nd of the cylinder is grasped in one handy and the delivery end v101s y The piston is actuated by the other hand for ejecting a uantity of lubricant. The pressureappliedl to the cylinder against the nipple serves to open the valve contained in the branch. On releasing the pressure the valve automatically recloses.

The same apparatus may be adapted for use as an ordinary oiler, b screwing or otherwise attaching aconica or other nipple or nozzle Is (Figure 3) tothe branch e so that the valve is pressed off its seating and oil is allowed to pass through the nipple when pressure is applied to the piston.

The invention is not limited to any particular mechanical or constructional details as these may be varied t0 suit dilerent re(- uirements. i

aving' thus described my invention what I claim as new and des1re to secure by Letters Patent is 1. In lubricating apparatus, the combination comprising a cylinder for containing lubricant, a piston within the cylinder, a rigid delivery branch arranged at one end of the ne with one end of the delivery branch, a valve within the other end of the said branch, and a nipple on to which the delivery branch can be pressed for opening the valve and allowing lubricant to pass from the cylinder to the nipple, substantially as described.

2. In a lubricating apparatus, a c linder adapted to contain lubricant, 1u ricant ejecting means associated with the cylinder, a delivery branch for lubricant connected with the cylinder and extending in angular relation thereto, said delivery branch having a lubricant outlet at one end and a handle carriedby the delivery branch opposite the lubricant outlet,l the lubricant containing cylinder being con" nected with the delivery branch at a oint intermediate the handle and the lubricantv outlet.

In testimony whereof .I have signed my name to this specification.

\ CHARLES ERIC MILNER. 

